Analysis of Android Application construction process and android build Analysis
To develop Android applications with ease, we need to have a deep understanding of the compilation and packaging of Android projects. For example, we need to know what each step of the Android project has done and what environments and tools are needed, what is input and output.
In the preceding command line Android Application Development, we have learned how to create an Android project and compile and run a debugable version of the application. This article describes the entire compilation process of the Android project.
First, we will analyze how Ant can compile and package the Android project into an APK file.
Dependencies between ant script build. xml targets when the ant debug command is executed
Execution sequence of ant script targets during ant debug Command Execution
Android Application Construction Process Diagram
From the above illustration, we can summarize the Androd application construction process as follows:
1. Generate the R. java class file
2. Convert the. aidl file to a. java file.
3. Compile A. java class file to generate a class file
4. Package the class file to generate the classes. dex file.
5. Package resource files (including res, assets, and AndroidManifest. xml)
6. Generate the apk file signed in debug mode
7. Align the apk File
What construction blocks are included in Android applications?
The question is too general. What is a building block?
If there are four major components, they are Activity, Service, Broadcast explorer, and Content Provider.
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Getting started with Android Development
Android development overview:
Android is a mobile, wireless, computer, and communication platform provided by Google. By using the Android Eclipse plug-in, you can build Android applications in a powerful Eclipse environment. This tutorial describes how to use the Eclipse plug-in Android Development Tools for Android Application Development, including the introduction to the Android platform and Android Development Tools, and the Development of two sample applications.
Use Eclipse to develop Android applications:
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